Cooling degree days in Michigan

Cooling degree days in Michigan was 670 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is down 6.2% from 2024. That is the 34th highest of 48 states in 2025.

2025, degree days (base 65°F)670

Change on 2024-6.2%

Rank34th of 48US states ranked

Series high8031921

Series low2391992

Next release: Wednesday, 6 October 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

Cooling degree days in Michigan, 1895 to 2025

degree days (base 65°F). Source: NOAA NCEI, NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. Retrieved 2026-10-12, published 2026-10-06.

All 131 values

Period	degree days (base 65°F)
2025	670
2024	714
2023	532
2022	669
2021	762
2020	699
2019	634
2018	778
2017	561
2016	771
2015	562
2014	443
2013	540
2012	773
2011	687
2010	761
2009	368
2008	526
2007	657
2006	583
2005	778
2004	415
2003	464
2002	705
2001	562
2000	431
1999	639
1998	666
1997	386
1996	448
1995	694
1994	443
1993	508
1992	239
1991	658
1990	430
1989	454
1988	726
1987	683
1986	452
1985	403
1984	527
1983	645
1982	429
1981	449
1980	505
1979	387
1978	485
1977	525
1976	446
1975	527
1974	436
1973	588
1972	385
1971	522
1970	544
1969	460
1968	469
1967	371
1966	497
1965	380
1964	498
1963	445
1962	442
1961	495
1960	414
1959	705
1958	370
1957	438
1956	423
1955	773
1954	467
1953	597
1952	598
1951	382
1950	355
1949	678
1948	519
1947	576
1946	426
1945	352
1944	648
1943	543
1942	470
1941	597
1940	473
1939	604
1938	563
1937	557
1936	646
1935	537
1934	717
1933	713
1932	527
1931	721
1930	566
1929	373
1928	406
1927	323
1926	394
1925	489
1924	288
1923	460
1922	515
1921	803
1920	389
1919	636
1918	515
1917	306
1916	616
1915	244
1914	482
1913	513
1912	371
1911	595
1910	448
1909	421
1908	502
1907	304
1906	536
1905	405
1904	313
1903	318
1902	341
1901	607
1900	608
1899	490
1898	541
1897	441
1896	504
1895	529

Compared with United States

Place	2025
Michigan	670
United States	1,502

Rankings

US states by cooling degree days 48 places

Definition

Sum over January to December of the degrees by which the daily mean temperature exceeds 65°F, a measure of cooling demand. NOAA estimates monthly values from nClimDiv temperatures and weights areas by population (2010 Census).

NOAA publishes these for operational monitoring; they can differ from official degree day publications.

How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide (Cooling degree days, Michigan, 1895 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json

MLA 9

NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide, Cooling degree days, Michigan, 1895 to 2025. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/cooling-degree-days/michigan. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. Cooling degree days, Michigan, 1895 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/en/cooling-degree-days/michigan.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide, Cooling degree days, Michigan, 1895 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/en/cooling-degree-days/michigan (Accessed: 12 October 2026).

BibTeX

@misc{noaa_cooling_degree_days_michigan_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide: Cooling degree days, Michigan, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/michigan. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide: Cooling degree days, Michigan, 1895 to 2025
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/cooling-degree-days/michigan
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/michigan.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -

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Questions

What is the cooling degree days in Michigan?

Where does this figure come from?

NOAA National Centers for Environmental Information. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. Retrieved by Invokely on 2026-10-12.

What was the highest cooling degree days in Michigan?

803 degree days (base 65°F) in 1921, the highest value since 1895 in this series.

Cooling degree days elsewhere in United States

Related statistics for Michigan

All statistics for Michigan | Michigan in figures